package com.itheima.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.itheima.domain.db.AnalysisByDay;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

public interface AnalysisByDayMapper extends BaseMapper<AnalysisByDay> {

    // 查询累计用户数
    @Select("SELECT SUM(`num_registered`) FROM `tb_analysis_by_day`")
    Long findRegisteredCount();

    // 查询指定时间范围的活跃用户数
    @Select("SELECT SUM(`num_active`) FROM `tb_analysis_by_day` WHERE record_date  BETWEEN #{begin} AND #{end}")
    Long findActiveCount(@Param("begin") String begin,@Param("end") String end);
}